[Webkit-unassigned] [Bug 141832] Viewport height is taller than the visible part of the document in some mobile browsers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=141832

John Doe <fson4 at icloud.com> changed:

           What    |Removed                     |Added
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                 CC|                            |fson4 at icloud.com

--- Comment #28 from John Doe <fson4 at icloud.com> ---
Hello. I assume this is related to this bug:

https://developer.apple.com/forums/thread/128949

https://stackoverflow.com/questions/62717621/white-space-at-page-bottom-after-device-rotation-in-ios-safari

1. Initial: 100% height match the full visible height
2. As  navigation bar is shown: 100% match the full visible height
3. As navigation bar is removed: 100% match the visible height as if the navigation bar is still there (i.e not 100% of the full visible height)

Happens on rotate and on navigation back_forward, on browser and webview.

On a single page web app with no scroll, updating the viewport height to match 100% to the full visible height when navigation bar is removed should be doable. As using vh units or -webkit-fill-available, tends to render content below the visible viewport or behind the navigation bar.

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